title: Effects of sildenafil on ocular perfusion demonstrated by color Doppler ultrasonography.
mesh_terms: D000328:Adult; D000368:Aged; D003971:Diastole / Q000187:drug effects; D007172:Erectile Dysfunction / Q000188:drug therapy*; D005123:Eye / Q000098:blood supply* / Q000000981:diagnostic imaging*; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010879:Piperazines / Q000009:adverse effects*; D011673:Pulsatile Flow / Q000187:drug effects; D011687:Purines; D012161:Retinal Artery / Q000187:drug effects / Q000502:physiology; D000068677:Sildenafil Citrate; D013450:Sulfones; D013599:Systole / Q000187:drug effects; D018615:Ultrasonography, Doppler, Color; D014655:Vascular Resistance / Q000187:drug effects; D014665:Vasodilator Agents / Q000009:adverse effects*
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate